What is Cisco VPN error 412?

[VelMurugan]

What is Cisco VPN error 412?

Cisco VPN error 412 will occassionally occur when using the Cisco VPN client.

The exact error message may differ between versions of the Cisco VPN client, but will be similar to this:

    Error Secure VPN Connection terminated locally by the Client. Reason 412: The remote peer is no longer responding.

Causes for Cisco VPN Error 412

There are many causes of error 412, including:

    * Poor network connection. Packet delay or loss can force the VPN session to drop.

    * Hardware failure in a network interface card or network device.

    * A firewall or ACL (Access Control List) is blocking required protocols or ports:

          o For PPTP, IP protocol 47 and TCP port 1723 are required
          o For IPSec, IP protocol 51 and UDP port 500 are required